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Spring plate of damper

A shock absorber and spring disk technology, applied in shock absorbers, springs, springs/shock absorbers, etc., can solve the problem of not paying attention to the corrosion resistance protection of shock absorber spring disks, poor mechanical properties and machining performance, and limitations. Shock absorber spring plate application and other issues, to achieve good toughness and wear resistance, improve mechanical properties, reduce the effect of demoulding force

Active Publication Date: 2018-10-19
NINGBO CITY QIQIANG PRECISION STAMPINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the cold-rolled steel plate has not been annealed, its hardness is very high (HRB greater than 90), but its mechanical properties and machining properties are extremely poor, and it can only be subjected to simple directional bending less than 90 degrees (perpendicular to the coiling Direction), in the existing preparation process, in order to improve the mechanical properties of alloy steel, the process of recompression and refiring is generally adopted. Although this process can greatly improve the mechanical properties of alloy steel, its operation is complicated and the cost is high. Some processes generally do not pay attention to the corrosion resistance protection of the shock absorber spring plate, or just use general methods to improve its corrosion resistance, but the effect is not obvious, which greatly limits the application of the shock absorber spring plate , which in turn affects the function of the shock absorber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0028] The raw material components and mass percentages of the shock absorber spring disks described in Examples 1-6 are shown in Table 1.

[0029] The pulse electrochrome plating solution is a standard chrome plating solution in the prior art.

[0030] Table 1: The mass percent of each raw material in embodiment 1-6

[0031]

Embodiment 7

[0033] Weigh the raw materials according to the mass percent of the raw material components in Example 1, first mix graphite powder, iron powder, aluminum powder, niobium powder, copper powder, and nano-NiB powder in a 25r / min mixer for 20min, then mix o-benzene Add dioctyl diformate to the mixture and mix for 20 minutes, then add ethylene-acrylic acid copolymer wax and mix for 20 minutes to obtain a uniform mixture;

[0034] Press the mixture into a green body at 90°C and 500MPa under warm pressure, and degrease in ethyl acetate solvent at 30°C for 10 minutes;

[0035] The degreased green body is placed in the sintering furnace at H 2 Sintering under the atmosphere, first raise the temperature to 550°C at a rate of 2°C / min for sintering for 2 hours, then increase the rate of 7°C / min to 1100°C for sintering for 4 hours, and cool to obtain a cooked body;

[0036] Perform pulse electrochrome plating on the surface of the cooked billet to obtain the finished spring plate of the ...

Embodiment 8

[0038] The raw materials are weighed according to the mass percent of the raw material components in Example 2, first graphite powder, iron powder, aluminum powder, niobium powder, copper powder, and nanometer NiB powder are mixed in a 28r / min mixer for 25min, and then o-benzene Add dioctyl diformate to the mixture and mix for 25 minutes, then add ethylene-acrylic acid copolymer wax and mix for 25 minutes to obtain a uniform mixture;

[0039] Press the mixture into a green body at 100°C and 550MPa under warm pressure, and degrease in a mixed solvent of cyclohexane and isopropanol at 40°C for 12 minutes;

[0040] The degreased green body is placed in the sintering furnace at H 2 For sintering under atmosphere, first raise the temperature to 570°C at a rate of 2.5°C / min for sintering for 2 hours, then increase the rate at a rate of 6°C / min to 1130°C for 4 hours, and cool to obtain a cooked body;

[0041] Perform pulse electrochrome plating on the surface of the cooked billet to...

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PUM

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Abstract

The invention relates to a spring plate of a damper, and belongs to the technical field of parts of dampers. The spring plate of the damper is prepared through the following raw materials in percentage by mass in a powder metallurgy manner: 0.2-0.5% of graphite powder, 0.1-0.3% of aluminum powder, 0.002-0.05% of niobium powder, 0.02-0.2% of copper powder, 0.5-1.5% of nano NiB, 0.1-0.5% of dioctylphthalate, 0.05-0.35% of vinyl-acrylic acid copolymer wax, and the balance Fe and inevitable impurities; the alloy powder of the raw materials is pressed and molded through a warm compaction technology, and a green body is processed by degreasing, sintering and pulse chromium electroplating. Therefore, the manufactured spring plate of the damper is outstanding in mechanical performance, mechanicalprocessing performance and corrosion resistance.

Description

technical field [0001] The invention relates to a shock absorber spring plate, which belongs to the technical field of shock absorber components. Background technique [0002] The shock absorber is mainly used to suppress the shock when the spring rebounds after absorbing the shock and the impact from the road. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road surface, the spring itself will reciprocate, and the shock absorber is used to suppress this spring jumping. Generally, the shock absorber uses a spring plate to install the spring for the shock absorber, and at the same time implements an auxiliary fixing effect on the shock absorber. In addition, with the continuous improvement of the requirements for automobile shock absorption, the spring disks of automobile shock absorbers are becoming more and more functional. In the same way, the spring plate is directly installed outside the vehicle, and the performanc...

Claims

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Application Information

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IPC IPC(8): F16F1/04C22C38/06C22C38/12C22C38/16C22C38/08B22F1/00B22F5/00
CPCF16F1/021C22C38/001C22C38/06C22C38/08C22C38/12C22C38/16B22F5/00F16F2226/02F16F2224/0208B22F1/10
Inventor 胡光辉
Owner NINGBO CITY QIQIANG PRECISION STAMPINGS